04 Deville Oxygen Sensor

MYDTS04

MEMBER
2004 CADILLAC DEVILLE DTS
V8

2004 deville dts. Pulling code P0155, Bank 2 sensor 1. Had it replaced but code still appears. Were there 2 I needed to replace and the location of it? Also is there a diagram available for this

Thank you

Thursday, July 28th, 2011 AT 12:41 PM

5 Replies

WRENCHTECH

MECHANIC
20,758 POSTS

Bank 2 is the left side of the engine or the front of the car. Sensor 1 would be the upstream sensor.

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Thursday, July 28th, 2011 AT 1:04 PM

MYDTS04

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3 POSTS

So is there just 1 sensor and I should be able to replace this myself if I removed that plastic shield at the bottom?

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Thursday, July 28th, 2011 AT 1:12 PM

WRENCHTECH

MECHANIC
20,758 POSTS

I don't know what your abilities are or what will be in your way. The sensor just threads into the exhaust pipe.

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Thursday, July 28th, 2011 AT 1:58 PM

MYDTS04

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3 POSTS

I'm pretty handy with the wrench. I can see and touch the sensor looking down into the car. Me standing in front of the engine it would be on my right side since its transverse. Sits under the water pump, because the pump was leaking directly onto it.

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Thursday, July 28th, 2011 AT 2:38 PM

WRENCHTECH